Improvement in belting



' J. THOMSON.

Belting,

No. 217,963. Patented July 29,1879.

NPETERS, PHOTO-UTHQGRAFHER, WASHINGTON. u C.

UNITED STATES PATENT OEEICE.

JAMES THOMSON, or CINCINNATI, OHIO.

IMPROVEMENT IN BELTING.

Specification forming part of Letters Patent No. 217.963, dated July 29,1879; application filed June 19, 1879.

To all whom it may concern:

Be it known that 1, JAMES THOMSON, of Cincinnati, in the county ofHamilton and State of Ohio, have invented certain new and usefulImprovements in Belting, of which the following is a specification.

My invention relates to an improved belt for transmitting power from onepulley to another.

It consists in a new method of combining a cotton belt with a leatherbelt.

Figure 1 is a representation, in perspective, of my improvement. Fig. 2is a cross-section of the same.

A represents a section of a leather belt, and B a section of a cottonbelt. G 0 represent channels cut in the surface of the leather. 0 0represent stitches for holding the cotton and leather firmly together. Drepresents a lapsplice for uniting two pieces of leather, which arefirst cemented and held under-pressure in the ordinary manner of unitingleather by surfaces and holding under pressure till set. The leather hastwo grooves, c 0, cut in the outer surface, as shown in Fig. 1. Thesegrooves must be of sufficient depth to bury the stitches c 0 below thesurface of the belt. After the cement is sufficiently set the leatherand cotton are firmly stitched together.

It is important that no part of the cotton belting come in Contact withthe machinery, as it rapidly frays or wears out. It is also material toprevent the stitches from frictional contact with the pulley, as theywould rapidly wear and destroy the mechanical union of the two, ascement alone will not perform this function for any considerable lengthof time.

The cotton or-fabric belt must be woven with two selvage'edges,otherwise it will fray or rapidly wear out.

A belt made as herein described I have found, by experience, to havemuch greater durability and strength than any other hitherto used. I

What I claim is An improved belt, composed of an inner or wearingsurface, A, of leather and an outer surface of cotton fabric, B, unitedby cement and stitches sunken in grooves in the surface A, allsubstantially as shown and described.

In testimony whereof I have hereunto set my hand this 16th day of J une,A. D. 1879;

JAMES THOMSON.

Witnesses:

JOHN E. JoNEs, FRANK MILLWARD, Jr.

